X0306 4 2019-02-26 false 0000949870 BOSTON BEER CO INC SAM 0001651134 Murphy Matthew Donal THE BOSTON BEER COMPANY, INC. ONE DESIGN CENTER PLACE, SUITE 850 BOSTON MA 02210 false true false false Chief Accounting Officer Class A Common 2019-02-26 4 M false 6000.00 108.56 A 8029.00 D Class A Common 2019-02-26 4 S false 1000.00 303.17 D 7029.00 D Class A Common 2019-02-26 4 S false 171.00 305.17 D 6858.00 D Class A Common 2019-02-26 4 S false 4577.00 306.18 D 2281.00 D Class A Common 2019-02-26 4 S false 222.00 307.77 D 2059.00 D Class A Common 2019-02-26 4 S false 30.00 308.41 D 2029.00 D Stock Option (Right to Buy) 108.56 2019-02-26 4 M false 6000.00 0.00 D 2017-01-01 2021-12-31 Class A Common 6000.00 0.00 D The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 8, 2018. The shares reported include 721 shares of restricted stock subject to vesting conditions. The price shown is the weighted average sale price for the transactions reported on this line. The range of sale prices for the 171 shares is from $304.45 to $305.32. The Filing Person will provide full information regarding the number of shares sold at each separate price upon request of the SEC, the Registrant, or a shareholder of the Registrant. The price shown is the weighted average sale price for the transactions reported on this line. The range of sale prices for the 4,577 shares is from $305.90 to $306.85. The Filing Person will provide full information regarding the number of shares sold at each separate price upon request of the SEC, the Registrant, or a shareholder of the Registrant. The price shown is the weighted average sale price for the transactions reported on this line. The range of sale prices for the 222 shares is from $307.40 to $308.17. The Filing Person will provide full information regarding the number of shares sold at each separate price upon request of the SEC, the Registrant, or a shareholder of the Registrant. The option vests in five annual installments: the first on January 1, 2017, and the final vesting on January 1, 2021, provided that the Reporting Person remains employed by the Issuer on the applicable vesting dates. Matthew D. Murphy 2019-02-26